Lucent DDM-2000 OC-3 User And Service Manual page 292

363-206-285
Issue 2, February 2000
DO ITEMS BELOW IN ORDER LISTED . . . . .FOR DETAILS, GO TO
Use the rtrv-alm: command to verify that no alarms, locks,
loops, or switches are present.
2. Notify maintenance center that alarms will be generated.
3.
NOTE:
The Network Side/User Side parameters of the
set-fecom: command must be set opposite at each end of
the optical spans.
Use the rtrv-fecom/set-fecom command to verify/set
Network Side/User Side parameters at each end of optical span
being established.
4. Verify software in each DDM-2000 shelf is Release 8 that
supports 22-Type OLIUs, if not already performed.
5. Replace OLIUs in each shelf with 22-Type OLIUs, if not already
done. (Protection OLIUs are required.)
6. At each shelf, use set-ne:tid=tid:crs=manual command to
set cross-connect mode to manual.
7.
NOTE:
In ring configurations, you should use the following rules in
establishing cross-connections in each ring:
1. All drop connections (including DRI, if present) from
the same STS-1 timeslot must be provisioned the
same, either all VT1.5 or STS-1.
2. If all 28 VT1.5s (DS1s) in an STS-1 are being passed
through at a node in a VT1.5 path-switched ring, then
the cross-connection may be provisioned as either a
pass-through STS-1 or VT1.5. However, if you
anticipate dropping VT1.5s from the pass-through
node in the future, you should provision the
pass-throughs as VT1.5 cross-connections. Also,
provisioning now as a VT1.5 cross-connect will avoid a
hit on traffic if the STS-1 cross-connect has to be
converted to 28 VT1.5 cross-connects to drop DS1s at
a later time.
DDM-2000 OC-3 M
Circuit Order:
ULTIPLEXER
NTP-030
Page 2 of 8
DLP-532
DLP-542